NASA's 'James Webb Space Telescope' launch date set for December 18, 2021


NASA's James Webb Space Telescope

It was announced that the James Webb Space Telescope , an infrared observation space telescope developed mainly by NASA, will be launched on Saturday, December 18, 2021. The James Webb Space Telescope is the successor to the Hubble Space Telescope and is expected to observe clues to unravel the mysteries of the universe.

NASA Readies James Webb Space Telescope for December Launch | NASA

ESA --Targeted launch date for Webb: 18 December 2021

The James Webb telescope has a bona fide launch date | Ars Technica

When trying to observe the universe with an astronomical telescope installed on the ground, it cannot be observed by the sunlight during the day, and the observation accuracy drops even at night due to the earth's atmosphere and artificial light. Therefore, the space telescope, which launches the telescope itself into space, has become an important facility for astronomical observation.

Launching a space telescope is not so easy due to the high cost and technical difficulties. The Hubble Space Telescope, which was launched in 1990, has repeatedly failed and revived, and it was hoped that the James Webb Space Telescope, the successor to the Hubble Space Telescope, would be launched. However, the development of the James Webb Space Telescope has been delayed due to countless technical issues, and the development cost has increased more than several times from the initial assumption , reaching 8.8 billion dollars (about 970 billion yen) by 2020. And that.

If you look at the following articles, you can check the development scenery of the James Webb Space Telescope, each segment, the development forecast map in outer space, and so on.

Hubble's successor giant space telescope 'Webb' development scenery will be released with high-quality photos & movies --GIGAZINE

by NASA's James Webb Space Telescope

The James Webb Space Telescope, which has been postponed many times , completed ground tests in August 2021 and is ready to be shipped to the launch site . Finally, on September 8, NASA and the European Space Agency (ESA) announced that they would 'launch the James Webb Space Telescope on December 18, 2021.'

The launch will take place at the Guiana Space Center in French Guiana, which will use the expendable launch vehicle Ariane 5. In exchange for launching the space telescope, ESA will be able to use part of the observation time using the James Webb Space Telescope. At the time of writing, the James Webb Space Telescope is at the Northrop Grumman facility in Redondo Beach , California, but will be shipped to Giana by the end of September.

The James Webb Space Telescope is 21.2m long, 14.2m wide, and 8m high when unfolded, but when stored in Ariane 5, it folds to 10.66m high and 4.5m wide. It will be in the state.

The launched James Webb Space Telescope, unlike the Hubble Space Telescope that orbits the Earth, will be installed at the

Lagrange Point (L2), 1.5 million km opposite the Sun from Earth. Since the relative position of the earth and the sun in the field of view of the telescope is constant, it is possible to block unnecessary light with a shading plate without frequent adjustment.

The James Webb Space Telescope is equipped with state-of-the-art cameras and spectroscopes, uses infrared rays with a longer wavelength than the Hubble Space Telescope, and is capable of observing the universe with 100 times the sensitivity. Therefore, it is expected to observe the atmospheric composition of extrasolar planets and the early galaxies that were born shortly after the Big Bang.

'The ESA is proud that the Webb (James Webb Space Telescope) will be launched with an Ariane 5 rocket specifically adapted for this mission,' said Daniel Neuenschbander, ESA's Director of Space Transport. We are committed to the success of this generational mission with all our partners. '

Gregory L. Robinson, director of the James Webb Space Telescope program at NASA, said, 'Webb is a mission that sets the stage for patience. I make this incredible effort possible. I am impressed with the dedicated team and global partnership that I have made. '' Now that the space telescope and rocket are ready for launch, I look forward to a great day and great scientific research to begin. ' rice field.

in Hardware,   Science, Posted by log1h_ik